Title of article
Status of the Θ+ analysis at LEPS Original Research Article
Author/Authors
T. Nakano، نويسنده , , for the LEPS collaboration ، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2010
Pages
7
From page
254
To page
260
Abstract
We report recent results on the Theta+ study from LEPS. The γd→K+K−pn reaction has been studied to search for the evidence of the Θ+ by detecting K+K− pairs at forward angles. The Fermi-motion corrected nK+ invariant mass distribution shows a narrow peak at 1.53 GeV/c2. The statistical significance of the peak calculated from a shape analysis is 5 σ, and the differential cross-section for the γn→K−Θ+ reaction is estimated to be 12 ± 2 nb/sr in the LEPS angular range by assuming the isotropic production.
Keywords
Penta-quark , Photo-production
Journal title
Nuclear physics A
Serial Year
2010
Journal title
Nuclear physics A
Record number
1205953
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